GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 25025 -5 Guide Pin

Removal Procedure


    Object Number: 40608  Size: SH
  1. Remove the 3rd and 4th clutch accumulator housing bolts (53).
  2. Remove the 3rd and 4th clutch accumulator housing (51).
  3. Remove the accumulator housing gasket (47). The accumulator housing gasket may be stuck to the spacer plate (46).
  4. Remove the 3rd clutch accumulator piston spring (50).
  5. Remove the 4th clutch accumulator piston spring (49).
  6. Remove the control valve body spacer plate (46).
  7. Remove the control valve assembly to spacer plate gasket (45) from the spacer plate (46).

Installation Procedure


    Object Number: 40634  Size: SH
  1. Install the J 25025 into the control valve body bolt hole where the manual shaft detent roller and spring assembly is mounted.
  2. Install the control valve body gasket (45).
  3. Install the control valve body spacer plate (46).

  4. Object Number: 40635  Size: SH
  5. Install the third and fourth clutch accumulator housing gasket (47).
  6. Install the third clutch accumulator piston spring (50). This spring is the longer of the two springs.
  7. Install the fourth clutch accumulator piston spring (49).
  8. Install the third and fourth clutch accumulator housing assembly (51) onto the control valve body assembly (44).
  9. Install the six accumulator housing bolts (53). Start the bolts finger tight and work towards the opposite end.
  10. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 54703  Size: SH
  11. Tighten the accumulator housing bolts sequentially.
  12. Tighten
    Tighten the accumulator housing bolts sequentially to 11 N·m (97 lb in).

  13. Remove the J 25025 -5.
  14. Important: It is recommended that transmission adaptive pressure (TAP) information be reset.

    Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, The ECM, PCM or TCM will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.

  15. Reset the TAP values. Refer to Adapt Function .